It's time for the Bubble Blitz at the Museum of Life and Science. The annual event, which celebrates bubbles in all forms, is from 10 a.m. to 4 p.m., Saturday. There will be tiny bubbles, giant bubbles, bouncing bubbles and much more. Plus, UNC-TV will be there with some special activities, including a visit from Angelina Ballerina. The activities are free with admission, which is $14 for adults and $10 for kids ages 3 to 12. Also, don't forget about the museum's Fridays Made Easy, which I wrote about earlier this week. Starting Friday, the museum will stay open until 8 p.m. on the fourth Friday of the month through September. Admission to the museum from 5 p.m. to 8 p.m. on those dates is just $5.

Frog in My Pocket, a new consignment sale, runs Friday to Sunday in Apex. Read my earlier post for details about this opportunity to get clothes, toys and gear for kids for less.

Embarrass your kids by singing the songs of your youth (I can't be the only one who does that) at the N.C. Symphony's Totally Awesome 80s concert, part of its SummerFest series at Koka Booth Amphitheatre in Cary on Saturday. You'll hear songs like "Livin' on a Prayer," "Welcome to the Jungle," and "Every Breath You Take." Lawn tickets are $33 in advance, $38 at the door. Kids 12 and under are *admitted free* on the lawn. The symphony will have its Instrument Zoo out where kids can check out and play instruments. Fun fact: Associate conductor Sarah Hicks, who will lead the orchestra, conducted the summer 2011 European tour of Sting's Symphonicity Tour.

Durham parks department's summer movie and concert series will feature a free showing of the PG-rated movie "The Tooth Fairy" from 8 p.m. to 10 p.m., Saturday, at Forest Hills Park, 1639 University Dr., Durham. Read my earlier post for more about the series. And since we're talking about a free or cheap summer movie, I'll take this moment to promote our free and cheap summer movie database.

UPDATE: This event was canceled because of the threat for severe weather. Stagville Under the Stars, a special program at Historic Stagville in Durham, is 8:30 p.m. to 10:30 p.m., Friday. The event with Morehead Planetarium focuses on the night sky and legends from African cultures. Read my earlier post for details on this free event.

Clare's Run for a Reason is Saturday at WakeMed Soccer Park in Cary. The event, which includes a 5K run, a one-mile Family Fitness Walk, kids' activities, a silent auction, music and refreshments, raises money and awareness of Sudden Unexplained Death in Childhood, a cousin to the more common SIDS. SUDC happens to children older than one, often in their toddler years. The event is held in honor of Clare Whitenack, a Raleigh toddler who died at 19 months. Read more about this family, cause and event in my earlier post.

Have lunch and support the Sassafras All Children's Playground project in north Raleigh. The project would raze the existing All Children's Playground at Laurel Hills Park in north Raleigh and replace it with a new one that offers equipment for children of all abilities to play on. Saints and Scholars Irish Pub on Spring Forest Road will host a special lunch from 11 a.m. to 4 p.m., Saturday. Tickets are $10 for adults and $6.50 for kids. Read my earlier post for details.

Cool John Ferguson will perform gospel, blues, funk, country, jazz and rhythm and blues at a free concert at 6 p.m., Saturday, at Sertoma Amphitheater in Bond Park, 801 High House Rd., Cary. Bring a picnic to this one.

The Peak City Pig Fest in Apex is Friday and Saturday. Competitive cooking begins Friday evening, but most of the activities start at 9 a.m., Saturday, in downtown Apex. They include more cooking, judging and a cornhole tournament.

Marbles Kids Museum in downtown Raleigh has a very busy weekend with several events. They start with ADF Project Dance, which is designed for young dancers. The 45-minute workshop focuses on African dance and drumming. The workshops at 11 a.m. and 1 p.m. are first come, first served. They help promote the upcoming ADF Kids performances, which are part of the American Dance Festival in Durham. Read my earlier post for more about that.

Steve Gerkin of the N.C. Zoo will be the Marbles' Science Solvers Guest Star. Gerkin, a zoo educator and polar bear expert, will be on hand from 1 p.m. to 3 p.m., Sunday. At 2:30 p.m., he'll talk about polar bears and his work with Polar Bears International. After the talk, you can head over to see "To the Arctic 3D" at Marbles' IMAX theater. On Sunday, save $2 when you buy a combo ticket to the museum and to see "To the Arctic 3D." Tickets on Sunday are $10 for adults, $8 for kids and $9 for seniors and college students. Gerkin's presentation is free with admission.